maria, i got the EXACT same email when i sold my first quilter. don't do it. it's a scam.
i also just read the article posted by favorite fabrics, above, and it's the same thing with different details. i'm out of the country, i'm on business, my shipper will collect it, my men will be there, etc. i'll send a postal order, a bank check, yada, yada. they don't give up. just ignore it. if you want to bother, you can report it to the attorney general. they love this stuff. make a copy to send.